# a_list = [
#     [1,10],
#     [2,20],
#     [3,30],
#     [4,40]
#     ]

# for i,j in a_list:
#     print(i,j)

a_list = [1,3,2,"abc"]
b_list = [2,3,1,"bbb"]

# print(list(zip(a_list,b_list)))

print(list(enumerate(a_list)))